If -2/7, x, -7/2 are in G.P, then x =
1
-1
± 1
None of these
Which term of the A.P -1, 3, 7, 11........is 91?
25th term
91th term
100th term
24th term
If 2x + 1, x2 + x + 1 and 3x2 - 3x + 3 are consecutive terms of an A.P then x =
1, 2
2, 3
3, 4
5, 6
If tn denotes the nth term of the series 2+3+6+11+18----------then t50 is
492-1
492
502+1
492+2
The sum (m + n)th term and (m - n)th terms of an A.P is equal to twice the
nthterm
mthterm
(m - 1)term
n + 1 term
There are 15 terms in an A.P. Its first term is 5 and common difference is 3, then its middle term is
8
26
29
9
nth term of the sequence 2, -4, 8, -16 is
an = 3an-1 + 1
an = n(n-3)/n+4
an = n2 + 1
an = (-1)n-12n
The 10th common term between the series 3+7+11+................ and 1+6+11+----- is
191
193
211
None of these.
The sequence an = 3n - 2 is an A.P, then a and d are
1, 4
4, 7
1, 3
7, 10
Next term in the series 3/16 + 1/18 + 1/12 +.........is
1/24
1/27
1/18
1/29
